What Is a Solar Phone Charger?

The principle of a solar cell phone charger is a tool that converts solar energy into electrical energy and stores it in a solar cell phone charger.

Solar cell phone charger

Solar energy

Built-in battery, when you need to charge your mobile phone, solar energy

Mobile phones, digital cameras, PDAs,

The key to the quality of solar cell phone chargers lies in four points:

First, use efficiency. The use efficiency includes two aspects: the conversion efficiency of the solar panel and the secondary conversion efficiency. The conversion efficiency of solar panels, as the name implies, refers to the efficiency of converting light energy into electrical energy; and the secondary conversion efficiency refers to the efficiency of light energy stored on a battery after being converted into electrical energy.

Second, battery quality and capacity. The battery capacity is generally 1.2 times that of your cell phone battery. Discharging the built-in lithium battery from solar energy to digital products such as mobile phones will have energy loss during the energy conversion process, and the conversion rate is generally 80% -90%. The battery can generate enough electricity for your mobile phone. Phone battery is full. The quality of the battery is also related to the life of the solar charger.

Third, the control circuit and the protection circuit. The current solar cell phone charger products on the market are very complicated. The protection circuit and control circuit in it may be simply designed or have poor compatibility, which is likely to charge or damage the cell phone or shorten the life of the cell phone and battery. So the design of control circuit and protection circuit is very important.

Fourth, solar charger accessories. This problem is often overlooked by many users, but it cannot be ignored. There are bad suppliers in the market to configure inferior accessories for price advantage, such as AC charger (commonly known as fire cow), AC charger has two types with or without IC protection circuit. The AC charger without protection IC not only has a small charging current, but also has a long charging time. Special attention should be paid when choosing a solar charger, whether the AC charger has circuit IC protection.

The solar cell phone charger can only be used in an emergency, and it cannot be completely relied on to charge digital products such as mobile phones. In order to fully charge the cell phone, the solar cell charger of the general mobile phone requires a solar cell panel larger than 0.7W.